endocardial cushion defects a spectrum of septal defects resulting from imperfect fusion of the endocardial cushions, and ranging from persistent ostium primum to persistent common atrioventricular canal; see atrial septal d. and atrioventricularis communis.

fibrous cortical defect a small, asymptomatic, osteolytic, fibrous lesion occurring within the bone cortex, particularly in the metaphyseal region of long bones in childhood.

filling defect any localized defect in the contour of the stomach, duodenum, or intestine, as seen in the radiograph after a barium enema.

neural tube defect a developmental anomaly of failure of closure of the neural tube, resulting in conditions such as anencephaly or spina bifida.

retention defect a defect in the power of recalling or remembering names, numbers, or events.

septal defect a defect in a cardiac septum resulting in an abnormal communication between the opposite chambers of the heart.

ventricular septal defect a congenital cardiac anomaly in which there is persistent patency of the ventricular septum in either the muscular or fibrous portions, most often due to failure of the bulbar septum to completely close the interventricular foramen.

Abnormal communication between the ventricles in ventricular septal defect.

de·fect

An imperfection, anomaly, malformation, dysfunction, or absence; a qualitative departure from what is expected. usage note Often confused with deficiency, which is a quantitative shortcoming.

[L. deficio, pp. -fectus, to fail, to lack]

defect,

n1. congenital anomaly in structure or function that may or may not be life-threatening. 2. failure of a product to meet a reasonable expectation of performance and safety to the consumer.

de·fect

(dē'fekt)

An imperfection, malformation, dysfunction, or absence; an attribute of quality, in contrast with deficiency, which is an attribute of quantity.

[L. deficio, pp. -fectus, to fail, to lack]

defect,

n1. the absence of some legal requisite. 2. an imperfection.

defect, atrial septal,

n a congenital defect in the heart that is often present from birth. It is sometimes referred to as a “hole” in the heart and is caused by the unsuccessful closure of the septum between the atria of the heart. The failure of the septum to close properly leaves a hole between the right and left atria.

defect, operative,

n the incomplete repair of bone after root resection or periapical curettage.

defect, osseous,

n a concavity in the bone surrounding one or more teeth, resulting from periodontal disease.

defect, speech,

n deviation of speech that is outside the range of acceptable variation in a given environment.

defect

an imperfection, failure or absence.

filling defect

an interruption in the contour of the inner surface of viscus revealed by contrast radiography, indicating excess tissue or substance on or in the wall of the organ, foreign body or other space-occupying lesions.

negative defect

in neurology, a movement that cannot be performed, such as in paresis or paralysis.

positive defect

in neurology, an involuntary movement, such as tremors, abnormal posture or seizures.

septal defect

a defect in the cardiac septum resulting in an abnormal communication between opposite chambers of the heart. See also aortic septal defect, atrial septal defect and ventricular septal defect.

Patient discussion about defect

Q. Is it a birth defect in children? I know about the causes of autism. Is it a birth defect in children?

A. it's not an easy answer i'm afraid...there are congenital differences, but no "birth defect" that we can detect. there's a good pdf file that gives a full explanation about it...i think you'll find it useful:http://209.85.129.132/search?q=cache:U7PHTfTAZhYJ:www.nichd.nih.gov/publications/pubs/upload/autism_overview_2005.pdf+http://www.nichd.nih.gov/publications/pubs/upload/autism_overview_2005.pdf&hl=iw&ct=clnk&cd=1&gl=il

Q. why does ADHD make kind of an hype to children? is it a nerve defect?

A. it's a complex interaction among genetic and environmental factors causing a disorder in the central nervous system. a study showed a delay in development of certain brain structures n the frontal cortex and temporal lobe, which are believed to be responsible for the ability to control and focus thinking.

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